Britain will be one step closer to finding a new Prime Minister today

Boris Johnson (L) publicly backed Andrea Leadsom (last on the right) on Monday.WPA Pool / Getty ImagesConservative MPs will begin voting on who they want to be the next leader of their party on Tuesday — and thus who will be the next Prime Minister.

Three-hundred and thirty MPs will start voting at 11 a.m. BST (6.00 a.m. ET) and voting will be closed at 6 p.m. BST (1.00 p.m. ET). The results will be released around 7 p.m. BST (2.00 p.m. ET) and the politician with the least amount of votes will be eliminated. The remaining candidates will go on to the next round of voting.

The candidates are:

Theresa May

Andrea Leadsom

Michael Gove

Stephen Crabb

Liam Fox

After this round, there will be another vote on Thursday, and one more on July 12, which will leave only two MPs in the race. Then Conservative party members will be sent a ballot paper by post to choose which out of the two people they want as leader. To be a member of the Conservative party you pay £25 ($33). However, if you are a member of the armed forces, you pay £15, or if you are aged under 23, you pay £5.

The winner will be announced on September 9.

Boris Johnson backs Andrea Leadsom

The race for the next Tory leader and PM has been fraught with drama over the last two weeks after David Cameron announced he was resigning as Prime Minister when he lost the referendum on Britain's membership of the EU last month.

This was because Michael Gove, a former Johnson ally, surprised everyone last week by announcing his leadership bid — which effectively forced Vote Leave associate Boris Johnson out of the running. Johnson's former campaign manager then accused Gove of treachery, as Gove had said publicly for years that he was not interested in becoming the PM, and had backed Johnson for the role just days before.